Air cleaner and method of controlling operation of same

An air cleaner, comprising:

• a body housing having an air inlet and a filter discharge outlet;
• a fan module provided within the body housing and configured to be driven such that air is provided through the air inlet;
• a filter supply module provided within the body housing and configured to provide a filter sheet;
• a filter transportation module configured to transport the filter sheet from the filter supply module such that the filter sheet passes by the air inlet and is discharged at the filter discharge outlet;
• and
• a cutting module configured to cut the filter sheet transported by the filter transportation module, wherein the filter transportation module comprises:
• a drive supply roller and a driven supply roller that are arranged to face each other with the filter sheet between the drive supply roller and the driven supply roller, and the drive supply roller and the driven supply roller are configured to maintain contact with the filter sheet or to transport the filter sheet;
• a drive discharge roller and a driven discharge roller that are positioned a distance apart from the drove supply roller and the driven supply roller, respectively, that are arranged to face each other with the filter sheet between the drive discharge roller and the driven discharge roller, and that the drive supply roller and the driven supply roller are configured to maintain contact with the filter sheet or to transport the filter sheet;
• a first roller drive motor configured to drive the drive supply roller;
• and
• a second roller drive motor configured to drive the drive discharge roller, and the cutting module is positioned between the drive supply rollers and the drive discharge rollers.